Infrared light induces melatonin synthesis within cellular mitochondria to clean up oxidative stress.
"the infrared comes in and through melatonin synthesis in the cell in the mitochondria helps clean that up." (said at 0:02:58)
The idea that near-infrared (NIR) radiation directly stimulates subcellular or mitochondrial melatonin synthesis to scavenge reactive oxygen species (ROS) and reduce oxidative stress is an active, biologically plausible hypothesis in photobiomodulation and cellular biology literature (e.g., Reiter et al., 2023). However, presenting this as an established physiological fact requires qualification: while mitochondria possess the enzymatic capacity to synthesize melatonin locally for antioxidant defense, the specific model wherein environmental or therapeutic infrared exposure directly triggers mitochondrial melatonin production to neutralize oxidative stress remains a theoretical framework that requires direct experimental validation.
- context: Melatonin: Both a Messenger of Darkness and a Participant in the Cellular Actions of Non-V… (Biology 2023)
"The transient increases in sweat and plasma melatonin support the premise that extrapineal melatonin has a production capacity that exceeds by far what can be produced by the pineal gland, and is used to maintain intercellular homeostasis and responds to rapid changes in ROS density. The potential regulatory mechanisms of near infrared light (NIR) on melatonin synthesis are discussed in detail herein." (abstract, results, passage verified)
pubmedfull study (doi) - context: Optimizing Brain Biology Through Near-Infrared-Induced Mitochondrial Melatonin Synthesis: … (Cureus 2026)
"This hypothesis paper synthesizes evidence from photobiomodulation (PBM) research, mitochondrial biology, and melatonin biochemistry to propose a mechanistic framework whereby NIR radiation activates mitochondrial melatonin synthesis, potentially triggering an antioxidant cascade that may confer neuroprotection... While substantial evidence supports individual components, the integrated hypothesis requires rigorous experimental validation." (abstract, conclusions, passage verified)
pubmedfull study (doi)